package com.phone.common_library.manager;

import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;

import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;

import java.security.MessageDigest;

import androidx.annotation.NonNull;

/**
 * description:glide转换圆角图片
 * Created by xsf
 * on 2016.04.15:17
 */
public class GlideRoundTransformUtil extends BitmapTransformation {
	
	@Override
	protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
		return circleCrop(pool, toTransform);
	}
	
	private static Bitmap circleCrop(BitmapPool pool, Bitmap source) {
		if (source == null) {
			return null;
		}
		
		int size = Math.min(source.getWidth(), source.getHeight());
		int x = (source.getWidth() - size) / 2;
		int y = (source.getHeight() - size) / 2;
		
		// TODO this could be acquired from the pool too
		Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
		
		Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);
		if (result == null) {
			result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
		}
		
		Canvas canvas = new Canvas(result);
		Paint paint = new Paint();
		paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
		paint.setAntiAlias(true);
		float r = size / 2f;
		canvas.drawCircle(r, r, r, paint);
		return result;
	}
	
	@Override
	public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
	
	}
}